What size tank does a Vampire Tetra need?

Vampire Tetra needs a minimum of 125 gallons, with 188 gallons recommended. They are middle swimmers.

Is Vampire Tetra good for beginners?

Vampire Tetra is rated "expert" difficulty (4/5). Best for experienced aquarists.

What fish are compatible with Vampire Tetra?

Vampire Tetra is aggressive. Compatible tank mates include other aggressive fish with similar water parameters (pH 6-7, temp 75-82°F). Give adequate territory space.

Vampire Tetra

Hydrolycus scomberoides

Family: Cynodontidae • Origin: Various

Vampire Tetra (Hydrolycus scomberoides) is a aggressive other reaching 18 inches. Can be kept singly. Minimum tank: 125 gallons.

Min Tank

125 gal

Max Size

18"

Temperature

75-82°F

6-7

Lifespan

20 years

School Size

Solo OK

Swim Level

middle

Hardness

5-15 dGH

aggressiveexpertcarnivore

Is Vampire Tetra Right for Your Tank?

Vampire Tetra is rated "expert" (4/5) — best for experienced aquarists. They have specific requirements that make them challenging for beginners. At 125+ gallons minimum, these are large-tank fish. Make sure you have the space and filtration before committing.

Vampire Tetra is aggressive and best kept alone or with other robust species that can hold their own. Not suitable for peaceful community tanks. They are territorial — provide adequate hiding spots and maintain enough space to reduce aggression. Expected lifespan: 20 years with proper care.

Common Mistakes with Vampire Tetra

✗

Relying on a heater without a thermometer

Vampire Tetra needs 75–82°F. Heaters malfunction or drift over time — always use a separate thermometer to verify. Temperature swings of even 3–4°F can trigger stress and disease, particularly ich.

✗

Putting them in a tank under 125 gallons

Many beginners underestimate tank size needs. Vampire Tetra requires at least 125 gallons — ideally 188. Cramped tanks lead to stunted growth, aggression, and poor water quality.

✗

Housing with peaceful nano fish

Vampire Tetra is aggressive and territorial — small, peaceful species like neon tetras, endlers, or celestial pearl danios will be stressed, bullied, or eaten. Choose tank mates that can hold their own.